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This lesson describes the protective effect of a simple reflex, as exemplified by those which involve the sensory, relay and motor neurones. The PowerPoint and accompanying resources are part of the final lesson in a series of 3 lessons which have been planned to cover the content of point 6.1.1 of the AQA A-level biology specification, titled “Survival and response”.
As shown on the cover image, the lesson begins with a challenge, where the students have to recognise the connection between key terms which have been grouped together. This will remind them of the names of three types of neurones, the three types of muscle tissue and some reflexes. Time is taken at the start to ensure that students understand that although the brain might be informed of a reflex, it isn’t involved in the processing to coordinate the movement. At the same time, the role of the other part of the CNS, the spinal cord in spinal reflexes, is emphasised. This lesson has been specifically planned to build on their knowledge of reflex actions from GCSE and to build in the detail that will support them in this lesson and as they move through the content of topic 6. Ultimately, students will understand how the rapid response of a simple reflex allows organisms to avoid damage and survive, due to the nervous pathway only consisting of three neurones, and therefore less synapses than other reactions.
Understanding checks, in the form of exam-style questions are written into the lesson and the answers embedded into the PowerPoint to allow students to assess their progress against the current topic.
The two other lessons in this series covering the detail of specification point 6.1.1 are named “responses in flowering plants” and “taxes and kineses”.
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